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El Kamouni H, S Jalaledin D, Albert A, Hoa S, Vo C, Bourré-Tessier J, Rich É, Goulet JR, Koenig M, Pérez G, Choi MY, Troyanov Y, Satoh M, Fritzler MJ, Senécal JL, Landon-Cardinal O. Anti-SMN autoantibodies in mixed connective tissue disease are associated with a severe systemic sclerosis phenotype. RMD Open 2023; 9:e003431. [PMID: 37797966 PMCID: PMC10551952 DOI: 10.1136/rmdopen-2023-003431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/14/2023] [Indexed: 10/07/2023] Open
Abstract
OBJECTIVES The survival of motor neuron (SMN) complex has an essential role in the assembly of small nuclear ribonucleoproteins (RNP). Recent reports have described autoantibodies (aAbs) to the SMN complex as novel biomarkers in anti-U1RNP+ myositis patients. The aim of this study was to compare phenotypic features of anti-U1RNP+ mixed connective tissue disease (MCTD) patients with and without anti-SMN aAbs. METHODS A retrospective MCTD cohort was studied. Addressable laser bead immunoassay was used to detect specific anti-SMN aAbs with <300 mean fluorescence intensity (MFI) as normal reference range, 300-999 MFI as low-titre and ≥1000 MFI as high-titre positivity. Comparison of clinical features between anti-SMN+ and anti-SMN- subgroups used two-tailed Fisher's exact test, and logistic regression analyses. RESULTS Sixty-six patients were included. Median age at MCTD diagnosis was 40.6 years, and duration of follow-up was 12 years. Based on the highest available titre, 39 (59%) were anti-SMN+: 10 (26%) had low titre and 29 (74%) had high titre. Anti-SMN+ patients had a higher frequency of fingertip pitting scars (anti-SMN+ 23% vs anti-SMN- 4%, p=0.04), lower gastrointestinal (GI) involvement (26% vs 4%, p=0.04), and myocarditis (16% vs 0%, p=0.04). The combined outcome of pitting scars and/or lower GI involvement and/or myositis and/or myocarditis was highest among high-titre anti-SMN+ patients: adjusted OR 7.79 (2.33 to 30.45, p=0.002). CONCLUSIONS Anti-SMN aAbs were present in 59% of our MCTD cohort. Their presence, especially at high-titres, was associated with a severe systemic sclerosis (scleroderma) phenotype including myositis, myocarditis and lower GI involvement.
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Affiliation(s)
- Hajar El Kamouni
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
- Division of Rheumatology, Hôpital de la Cité-de-la-Santé, Laval, Quebec, Canada
| | - Darya S Jalaledin
- Division of Internal Medicine, Centre hospitalier de l'Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Alexandra Albert
- Clinique Multidisciplinaire de Neuville, Neuville, Quebec, Canada
| | - Sabrina Hoa
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Caroline Vo
- Division of Rheumatology, Hôpital Charles-LeMoyne, Greenfield Park, Quebec, Canada
| | - Josiane Bourré-Tessier
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Éric Rich
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Jean-Richard Goulet
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Martial Koenig
- Division of Internal Medicine, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Gemma Pérez
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - May Y Choi
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Yves Troyanov
- Division of Rheumatology, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
| | - Minoru Satoh
- Department of Medicine, Kitakyushu Yahata-Higashi Hospital, Kitakyushu, Japan
- Department of Human, Information and Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Marvin J Fritzler
- Department of Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Jean-Luc Senécal
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Océane Landon-Cardinal
- Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
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Pérez G, Muñoz-San Martín C, Chacón F, Bacigalupo A, Cattan PE, Solís R. Modification of the Daily Activity Pattern of the Diurnal Triatomine Mepraia spinolai (Hemiptera: Reduviidae) Induced by Trypanosoma cruzi (Trypanosomatida: Trypanosomatidae) Infection. J Med Entomol 2021; 58:2474-2478. [PMID: 34197593 DOI: 10.1093/jme/tjab118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Indexed: 06/13/2023]
Abstract
Mepraia spinolai, (Porter) 1934, is a diurnal triatomine endemic to Chile and a wild vector of the protozoan Trypanosoma cruzi, (Chagas) 1909, which causes Chagas disease. Behavioral changes in M. spinolai induced by this parasite have been reported previously, which include detection of a potential host, defecation latency, and some life history traits. In this study we assessed changes in locomotor and daily activity due to infection with T. cruzi. No difference was detected in distance traveled between infected and uninfected individuals. However, the groups differed in their daily activity patterns; infected individuals showed significant reduction of movements during the light phase and concentrated their activity in the dark phase. Uninfected individuals showed no differences in locomotor activity between the phases. The results suggest that T. cruzi induces a displacement in the activity of M. spinolai toward the dark phase of the circadian cycle, which may improve its vector competence.
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Affiliation(s)
- G Pérez
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
| | - C Muñoz-San Martín
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
- Núcleo de Investigaciones Aplicadas en Ciencias Veterinarias y Agronómicas, Universidad de las Américas, Campus Providencia, Santiago, Chile
| | - F Chacón
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
| | - A Bacigalupo
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - P E Cattan
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
| | - R Solís
- Depto. Cs. Biológicas Animales, Facultad de Cs. Veterinarias y Pecuarias, Universidad de Chile, Casilla 2, Correo 15, Santiago,Chile
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Rodríguez JI, Kobus V, Téllez I, Pérez G. Prophylaxis with rivaroxaban after laparoscopic sleeve gastrectomy could reduce the frequency of portomesenteric venous thrombosis. Ann R Coll Surg Engl 2020; 102:712-716. [PMID: 32969260 DOI: 10.1308/rcsann.2020.0209] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Portal and mesenteric venous thrombosis is a rare but potentially serious complication after laparoscopic sleeve gastrectomy. There are no consistent studies that prove the safety and effectiveness of oral anticoagulant thromboprophylaxis with rivaroxaban after laparoscopic sleeve gastrectomy. The objective was to evaluate the effect of rivaroxaban on the frequency of portal and mesenteric venous thrombosis and its safety profile after laparoscopic sleeve gastrectomy. MATERIALS AND METHODS This retrospective analysis of prospectively collected data includes all laparoscopic sleeve gastrectomies performed by a single surgeon at Pontificia Universidad Católica de Chile Hospital between January 2009 and June 2019. All patients received low molecular weight heparin thromboprophylaxis during the whole hospital stay. Between July 2012 and June 2019, patients received additional post-discharge thromboprophylaxis with rivaroxaban. Patient demographics, impaired renal, post-surgical portal and mesenteric venous thrombosis, and bleeding episodes were registered. RESULTS A total of 516 patients were identified; 95 patients were excluded. Results for 421 patients were analysed: 198 received only intrahospital thromboprophylaxis (group 1) and 223 received additional post-discharge thromboprophylaxis with rivaroxaban (group 2). There was no statistically significant difference between the two groups concerning age, sex and body mass index. In group 1, four cases of portal and mesenteric venous thrombosis were registered and no cases were reported in group 2 (p < 0.05). All cases occurred before 30 days after surgery. No bleeding episodes and no adverse reactions were detected in group 2. CONCLUSIONS Thromboprophylaxis during the whole hospital stay (two to three days), followed by rivaroxaban 10mg once daily for 10 days after discharge (completing in total 13-14 days of prophylaxis), could reduce cases of post-surgical portal and mesenteric venous thrombosis without an increase in bleeding complications.
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Affiliation(s)
- J I Rodríguez
- Department of Surgery, Pontifical Catholic University of Chile, Santiago, Chile.,Department of Medical Education, Pontifical Catholic University of Chile, Santiago, Chile
| | - V Kobus
- Medical School, Pontifical Catholic University of Chile, Santiago, Chile
| | - I Téllez
- Medical School, Pontifical Catholic University of Chile, Santiago, Chile
| | - G Pérez
- Department of Surgery, Pontifical Catholic University of Chile, Santiago, Chile
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Abstract
IntroductionAs the psychopathological constructs have been influenced by scientific and cultural paradigms of its time, culture reflects and determines the way of understanding health and disease. The knowledge generated is integrated to the cultural wealth and it continues its development by interacting with culture, thus the ideas of mental illness and its treatment vary according to culture and beliefs of a given population in a given time.ObjectivesTo propose a framework for analysis through the examination of cultural products. We argue that this strategy can give us some clues about how the general population understands mental illness and the psychiatric work.MethodsA review of the literature available about social representations of science, medicine, illness and psychiatry, through cultural products analysis.ResultsThere are many works that address the presence of these issues in the social imaginary by analyzing cultural products. In the field of psychiatry, the analysis of films, literature and music (the last, in a lesser extent) are the most frequent.ConclusionsThe analysis of cultural products can be a source of additional knowledge that connects us with the social representations of our profession and its scope of practice, favoring a better understanding about what psychiatry and mental illness means for our patients and general population.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Rodríguez-Ruiz M, Perez-Gracia J, Rodríguez I, Alfaro C, Oñate C, Pérez G, Gil-Bazo I, Benito A, Inogés S, López-Diaz de Cerio A, Ponz-Sarvise M, Resano L, Berraondo P, Barbés B, Martin-Algarra S, Gúrpide A, Sanmamed M, de Andrea C, Salazar A, Melero I. Combined immunotherapy encompassing intratumoral poly-ICLC, dendritic-cell vaccination and radiotherapy in advanced cancer patients. Ann Oncol 2018; 29:1312-1319. [DOI: 10.1093/annonc/mdy089] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Shepherd AJ, Day I, Blatchford P, Cooper S, Marshall R, Pérez G, Swatton E, Robinson S, Turner I, Xue Y, Zacks J, Tallarigo A, McAdams R. Modelling and analysis of the JET EP2 neutral beam full energy ion dump curved end plate. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.05.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pavez F, Saura E, Pérez G, Marset P. The Social Representations of Psychiatry and Mental Illness Examined Through the Analysis of Music as a Cultural Product. ACTA ACUST UNITED AC 2017. [DOI: 10.47513/mmd.v9i4.535] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Culture reflects and shapes the understanding of health and disease. We propose that the analysis of cultural products related to music, particularly song lyrics, can inform us about the social representations of psychiatry and mental illness. In order to support our proposal and engage in future research, we examine research regarding social representations of science, medicine, illness and psychiatry in music.
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Mehta H, Mashiko S, Goulet PO, Desjardins J, Pérez G, Koenig M, Senécal JL, Sarfati M. Dabigatran aggravates topoisomerase I peptide-loaded dendritic cells-induced lung and skin fibrosis. Clin Exp Rheumatol 2017; 35 Suppl 106:35-39. [PMID: 28229819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Dysregulated coagulation cascade has been implicated in development of fibrosis in systemic sclerosis (SSc). Thrombin, a key mediator of the coagulation pathway, has both proinflammatory and procoagulant properties. Here, we evaluated the efficacy of oral dabigatran, a direct thrombin inhibitor, on topoisomerase I dendritic cells (TOPOIA DCs)-induced lung and skin fibrosis, an experimental model of SSc. METHODS Mice were repeatedly immunized with TOPOIA DCs. Dabigatran was administered in food either during the onset of fibrotic (late treatment) or inflammatory (early treatment) phase. RESULTS Early administration of dabigatran caused an aggravation of pulmonary fibrosis associated with signs of severe perivascular inflammation while late treatment was not protective when compared to the untreated TOPOIA DCs group. Thrombin was increased in lungs of TOPOIA DCs immunized group and, paradoxically, further augmented by administration of dabigatran to immunized mice. As in lungs, early and not late drug administration exacerbated skin fibrosis. Moreover, early dabigatran treatment induced a profibrotic and inflammatory skin gene expression signature with upregulated expression of Col5a1, Timp1, Tweakr, Vwf, Il6, Il33, Il4 and Ifng. CONCLUSIONS Dabigatran aggravated lung and skin fibrosis in a TOPOIA DCs-induced model of SSc-like disease. Therefore, our results argue against the use of dabigatran to treat patients with SSc.
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Affiliation(s)
- Heena Mehta
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Shunya Mashiko
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Philippe-Olivier Goulet
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Jade Desjardins
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Gemma Pérez
- Laboratory for Research in Autoimmunity, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Martial Koenig
- Laboratory for Research in Autoimmunity, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Jean-Luc Senécal
- Laboratory for Research in Autoimmunity, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Marika Sarfati
- Immunoregulation Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada.
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Moncada J, Terraza C, Tagle L, Coll D, Ortiz P, Pérez G, de la Campa J, Alvarez C, Tundidor-Camba A. Synthesis, characterization and studies of properties of six polyimides derived from two new aromatic diamines containing a central silicon atom. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.04.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tzoran I, Papadakis M, Brenner B, Fidalgo Á, Rivas A, Wells PS, Gavín O, Adarraga MD, Moustafa F, Monreal M, Prandoni P, Brenner B, Barba R, Di Micco P, Bertoletti L, Tzoran I, Reis A, Bosevski M, Bounameaux H, Malý R, Wells P, Papadakis M, Adarraga M, Aibar M, Alfonso M, Arcelus J, Barba R, Barrón M, Barrón-Andrés B, Bascuñana J, Blanco-Molina A, Bueso T, Cañada G, Cañas I, Chic N, del Pozo R, del Toro J, Díaz-Pedroche M, Díaz-Peromingo J, Falgá C, Fernández-Capitán C, Fidalgo M, Font C, Font L, Gallego P, García A, García M, García-Bragado F, García-Brotons P, Gavín O, Gómez C, Gómez V, González J, González-Marcano D, Grau E, Grimón A, Guijarro R, Gutiérrez J, Hernández-Comes G, Hernández-Blasco L, Hermosa-Los Arcos M, Jara-Palomares L, Jaras M, Jiménez D, Joya M, Llamas P, Lecumberri R, Lobo J, López P, López-Jiménez L, López-Reyes R, López-Sáez J, Lorente M, Lorenzo A, Maestre A, Marchena P, Martín-Martos F, Monreal M, Nieto J, Nieto S, Núñez A, Núñez M, Odriozola M, Otero R, Pedrajas J, Pérez G, Pérez-Ductor C, Peris M, Porras J, Reig O, Riera-Mestre A, Riesco D, Rivas A, Rodríguez C, Rodríguez-Dávila M, Rosa V, Ruiz-Giménez N, Sahuquillo J, Sala-Sainz M, Sampériz A, Sánchez-Martínez R, Sánchez Simón-Talero R, Sanz O, Soler S, Suriñach J, Torres M, Trujillo-Santos J, Uresandi F, Valero B, Valle R, Vela J, Vicente M, Villalobos A, Vanassche T, Verhamme P, Wells P, Hirmerova J, Malý R, Tomko T, del Pozo G, Salgado E, Sánchez G, Bertoletti L, Bura-Riviere A, Mahé I, Merah A, Moustafa F, Papadakis M, Braester A, Brenner B, Tzoran I, Antonucci G, Barillari G, Bilora F, Bortoluzzi C, Cattabiani C, Ciammaichella M, Di Biase J, Di Micco P, Duce R, Ferrazzi P, Giorgi-Pierfranceschi M, Grandone E, Imbalzano E, Lodigiani C, Maida R, Mastroiacovo D, Pace F, Pesavento R, Pinelli M, Poggio R, Prandoni P, Rota L, Tiraferri E, Tonello D, Tufano A, Visonà A, Zalunardo B, Gibietis V, Skride A, Vitola B, Monteiro P, Ribeiro J, Sousa M, Bosevski M, Zdraveska M, Bounameaux H, Calanca L, Erdmann A, Mazzolai L. Outcome of Patients with Venous Thromboembolism and Factor V Leiden or Prothrombin 20210 Carrier Mutations During the Course of Anticoagulation. Am J Med 2017; 130:482.e1-482.e9. [PMID: 27986523 DOI: 10.1016/j.amjmed.2016.11.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/03/2016] [Accepted: 11/04/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Individuals with factor V Leiden or prothrombin G20210A mutations are at a higher risk to develop venous thromboembolism. However, the influence of these polymorphisms on patient outcome during anticoagulant therapy has not been consistently explored. METHODS We used the Registro Informatizado de Enfermedad TromboEmbólica database to compare rates of venous thromboembolism recurrence and bleeding events occurring during the anticoagulation course in factor V Leiden carriers, prothrombin mutation carriers, and noncarriers. RESULTS Between March 2001 and December 2015, 10,139 patients underwent thrombophilia testing. Of these, 1384 were factor V Leiden carriers, 1115 were prothrombin mutation carriers, and 7640 were noncarriers. During the anticoagulation course, 160 patients developed recurrent deep vein thrombosis and 94 patients developed pulmonary embolism (16 died); 154 patients had major bleeding (10 died), and 291 patients had nonmajor bleeding. On multivariable analysis, factor V Leiden carriers had a similar rate of venous thromboembolism recurrence (adjusted hazard ratio [HR], 1.16; 95% confidence interval [CI], 0.82-1.64), half the rate of major bleeding (adjusted HR, 0.50; 95% CI, 0.25-0.99) and a nonsignificantly lower rate of nonmajor bleeding (adjusted HR, 0.66; 95% CI, 0.43-1.01) than noncarriers. Prothrombin mutation carriers and noncarriers had a comparable rate of venous thromboembolism recurrence (adjusted HR, 1.00; 95% CI, 0.68-1.48), major bleeding (adjusted HR, 0.75; 95% CI, 0.42-1.34), and nonmajor bleeding events (adjusted HR, 1.10; 95% CI, 0.77-1.57). CONCLUSIONS During the anticoagulation course, factor V Leiden carriers had a similar risk for venous thromboembolism recurrence and half the risk for major bleeding compared with noncarriers. This finding may contribute to decision-making regarding anticoagulation duration in selected factor V Leiden carriers with venous thromboembolism.
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Affiliation(s)
- Inna Tzoran
- Department of Haematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel.
| | - Manolis Papadakis
- Haematology and Hemostasis Unit, Hospital Papageorgiou, Saloniki, Greece
| | - Benjamin Brenner
- Department of Haematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa, Israel
| | - Ángeles Fidalgo
- Department of Internal Medicine, Hospital Universitario de Salamanca, Spain
| | - Agustina Rivas
- Department of Pneumonology, Hospital Universitario Araba, Álava, Spain
| | - Philip S Wells
- Department of Medicine, University of Ottawa, Ottawa Hospital Research Institute, Ontario, Canada
| | - Olga Gavín
- Department of Haematology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | | | - Farès Moustafa
- Department of Emergency, Clermont-Ferrand University Hospital, France
| | - Manuel Monreal
- Department of Internal Medicine, Hospital Universitario Germans Trias i Pujol de Badalona, Universidad Católica de Murcia, Barcelona, Spain
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Mahé I, Chidiac J, Bertoletti L, Font C, Trujillo-Santos J, Peris M, Pérez Ductor C, Nieto S, Grandone E, Monreal M, Arcelus J, Ballaz A, Barba R, Barrón M, Barrón-Andrés B, Bascuñana J, Blanco-Molina A, Bueso T, Casado I, Culla A, de Miguel J, del Toro J, Díaz-Peromingo J, Falgá C, Fernández-Capitán C, Font C, Font L, Gallego P, García-Bragado F, García-Brotons P, Gómez V, González J, Grau E, Grimón A, Guirado L, Gutiérrez J, Hernández G, Hernández-Blasco L, Isern V, Jara-Palomares L, Jaras M, Jiménez D, Lacruz B, Lecumberri R, Lobo J, López-Jiménez L, López-Reyes R, López-Sáez J, Lorente M, Lorenzo A, Madridano O, Marchena P, Martín-Antorán J, Martín-Martos F, Monreal M, Morales M, Nauffal D, Nieto J, Nieto S, Núñez M, Otalora S, Otero R, Pagán B, Pedrajas J, Pérez C, Pérez G, Peris M, Porras J, Ramírez L, Reig O, Riera A, Rivas A, Rodríguez-Dávila M, Rosa V, Ruiz-Artacho P, Ruiz-Giménez N, Ruiz-Martínez C, Sampériz A, Sala C, Sanz O, Soler S, Sopeña B, Suarez I, Suriñach J, Tiberio G, Tolosa C, Trujillo-Santos J, Uresandi F, Valle R, Vela J, Villalta J, Malfante P, Verhamme P, Wells P, Hirmerova J, Malý R, Tomko T, Salgado E, Bertoletti L, Bura-Riviere A, Farge-Bancel D, Hij A, Mahé I, Merah A, Papadakis M, Braester A, Brenner B, Tzoran I, Apollonio A, Barillari G, Candeloro G, Ciammaichella M, Di Micco P, Ferrazzi P, Grandone E, Lessiani G, Lodigiani C, Mastroiacovo D, Pace F, Pinelli M, Prandoni P, Rota L, Tiraferri E, Tufano A, Visonà A, Belovs A, Skride A, Moreira M, Ribeiro J, Sousa M, Bosevski M, Zdraveska M, Alatri A, Bounameaux H, Calanca L, Mazzolai L, Serrano J, Decousus H, Reis A. The Clinical Course of Venous Thromboembolism May Differ According to Cancer Site. Am J Med 2017; 130:337-347. [PMID: 27884650 DOI: 10.1016/j.amjmed.2016.10.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 09/21/2016] [Accepted: 10/24/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND We hypothesized that the clinical course of venous thromboembolism in patients with active cancer may differ according to the specificities of primary tumor site. AIM AND METHODS We used data from RIETE (international registry of patients with venous thromboembolism) to compare the clinical venous thromboembolism-related outcomes during the course of anticoagulation in patients with one of the 4 more frequent cancers (breast, prostate, colorectal, or lung cancer). RESULTS As of September 2014, 3947 cancer patients were recruited, of whom 938 had breast, 629 prostate, 1189 colorectal, and 1191 lung cancer. Overall, 55% had metastatic disease (42%, 36%, 53%, and 72%, respectively). During the course of anticoagulant therapy (mean duration, 139 days), the rate of thromboembolic recurrences was similar to the rate of major bleeding in patients with breast (5.6 [95% confidence interval (CI), 3.8-8.1] vs 4.1 [95% CI, 2.7-5.9] events per 100 patient-years) or colorectal cancer (10 [95% CI, 7.6-13] vs 12 [95% CI, 9.4-15] per 100 patient-years). In contrast, in patients with prostate cancer, the rate of venous thromboembolic recurrences was half the rate of major bleeding (6.9 [95% CI, 4.4-10] vs 13 [95% CI, 9.2-17] events per 100 patient-years), whereas in those with lung cancer, the rate of thromboembolic recurrences was twofold higher than the rate of major bleeding (27 [95% CI, 22-23] vs 11 [95% CI, 8.6-15] per 100 patient-years). CONCLUSIONS Significant differences in the clinical profile of venous thromboembolic-related outcomes were observed according to the site of cancer. These findings suggest the development of cancer-specific anticoagulant strategies as an area for further research.
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Affiliation(s)
- Isabelle Mahé
- Department of Internal Medicine, Hôpital Louis Mourier, Investigation Network on Venous Thrombo-embolism (INNOVTE), Colombes (APHP), University Paris 7, EA REMES 7334 France.
| | - Jean Chidiac
- Department of Internal Medicine, Hôpital Louis Mourier, Investigation Network on Venous Thrombo-embolism (INNOVTE), Colombes (APHP), University Paris 7, EA REMES 7334 France
| | - Laurent Bertoletti
- Department of Vascular and Therapeutic Medicine, CHU Saint-Etienne, Hôpital Nord, French Clinical Research Infrastructure Network (F-CRIN), INNOVTE
| | - Carme Font
- Department of Medical Oncology, IDIBAPS/Translational Genomics and Targeted Therapeutics in Solid Tumors, Hospital Clinic de Barcelona, Spain
| | - Javier Trujillo-Santos
- Department of Internal Medicine, Complejo Hospitalario Universitario de Cartagena, Murcia, Spain
| | - Marisa Peris
- Department of Internal Medicine, Hospital Provincial Castellon; CEU Cardenal Herrero University, Spain
| | - Cristina Pérez Ductor
- Department of Emergency Medicine, Hospital Universitario Doctor Peset, Valencia, Spain
| | - Santiago Nieto
- Department of Haematology, Hospital de la Vega Lorenzo Guirao, Murcia, Spain
| | - Elvira Grandone
- Atherosclerosis and Thrombosis Unit, Casa Sollievo Della Sofferenza, Foggia, Italy
| | - Manuel Monreal
- Department of Internal Medicine, Hospital Universitari Germans Trias i Pujol, Badalona, Universidad Católica de Murcia, Spain
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Newton DH, Monreal Bosch M, Amendola M, Wolfe L, Perez Ductor C, Lecumberri R, Levy MM, Monreal M, Decousus H, Prandoni P, Brenner B, Barba R, Di Micco P, Bertoletti L, Tzoran I, Reis A, Bosevski M, Bounameaux H, Malý R, Wells P, Papadakis M, Agüero R, Aibar M, Alfonso M, Aranda R, Arcelus J, Barba R, Barrón M, Barrón-Andrés B, Bascuñana J, Binetti J, Blanco-Molina A, Bueso T, Cañas I, Carmona F, Chic N, Culla A, del Pozo R, del Toro J, Díaz-Pedroche M, Díaz-Peromingo J, Falgá C, Fernández-Aracil C, Fernández-Capitán C, Fidalgo M, Font C, Font L, Gallego P, García M, García-Bragado F, Gómez V, González J, Grau E, Grimón A, Guirado L, Gutiérrez J, Hernández-Comes G, Hernández-Blasco L, Jara-Palomares L, Jaras M, Jiménez D, Joya M, Lecumberri R, Lobo J, López-Jiménez L, López-Reyes R, López-Sáez J, Lorente M, Lorenzo A, Manrique-Abos I, Marchena P, Martín M, Martín-Antorán J, Martín-Martos F, Monreal M, Nieto J, Nieto S, Núñez A, Núñez M, Otalora S, Otero R, Pagán B, Pedrajas J, Pérez G, Pérez I, Pérez-Ductor C, Peris M, Porras J, Reig O, Riera-Mestre A, Riesco D, Rivas A, Rodríguez-Dávila M, Rosa V, Rosillo-Hernández E, Ruiz-Artacho P, Ruiz-Giménez N, Sahuquillo J, Sala-Sainz M, Sampériz A, Sánchez R, Sanz O, Soler S, Sopeña B, Suriñach J, Tolosa C, Trujillo-Santos J, Uresandi F, Valero B, Valle R, Vela J, Vidal G, Villalta J, Vanassche T, Verhamme P, Wells P, Hirmerova J, Malý R, Salgado E, Bertoletti L, Bura-Riviere A, Champion K, Farge-Bancel D, Hij A, Mahé I, Merah A, Papadakis M, Braester A, Brenner B, Tzoran I, Antonucci G, Barillari G, Bilora F, Ciammaichella M, Dentali F, Di Micco P, Duce R, Ferrazzi P, Grandone E, Lodigiani C, Maida R, Pace F, Pesavento R, Poggio R, Prandoni P, Rota L, Tiraferri E, Tonello D, Tufano A, Visonà A, Zalunardo B, Drucka E, Kigitovica D, Skride A, Ramos A, Ribeiro J, Sousa M, Bosevski M, Zdraveska M, Bounameaux H, Erdmann A, Mazzolai L, Ney B. Analysis of noncatheter-associated upper extremity deep venous thrombosis from the RIETE registry. J Vasc Surg Venous Lymphat Disord 2017; 5:18-24.e1. [DOI: 10.1016/j.jvsv.2016.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 08/12/2016] [Indexed: 11/25/2022]
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Mehta H, Goulet PO, Nguyen V, Pérez G, Koenig M, Senécal JL, Sarfati M. Topoisomerase I peptide-loaded dendritic cells induce autoantibody response as well as skin and lung fibrosis. Autoimmunity 2016; 49:503-513. [DOI: 10.1080/08916934.2016.1230848] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | | | | | - Gemma Pérez
- Laboratory for Research in Autoimmunity, Center de Recherche du Center Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Martial Koenig
- Laboratory for Research in Autoimmunity, Center de Recherche du Center Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Jean-Luc Senécal
- Laboratory for Research in Autoimmunity, Center de Recherche du Center Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Québec, Canada
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Barrett TR, Ellwood G, Pérez G, Kovari M, Fursdon M, Domptail F, Kirk S, McIntosh S, Roberts S, Zheng S, Boccaccini L, You JH, Bachmann C, Reiser J, Rieth M, Visca E, Mazzone G, Arbeiter F, Domalapally P. Progress in the engineering design and assessment of the European DEMO first wall and divertor plasma facing components. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2016.01.052] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Pizarro H, Vera MS, Vinocur A, Pérez G, Ferraro M, Menéndez Helman RJ, Dos Santos Afonso M. Glyphosate input modifies microbial community structure in clear and turbid freshwater systems. Environ Sci Pollut Res Int 2016; 23:5143-53. [PMID: 26552793 DOI: 10.1007/s11356-015-5748-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 11/03/2015] [Indexed: 05/20/2023]
Abstract
Since it was commercially introduced in 1974, glyphosate has been one of the most commonly used herbicides in agriculture worldwide, and there is growing concern about its adverse effects on the environment. Assuming that glyphosate may increase the organic turbidity of water bodies, we evaluated the effect of a single application of 2.4 ± 0.1 mg l(-1) of glyphosate (technical grade) on freshwater bacterioplankton and phytoplankton (pico, micro, and nanophytoplankton) and on the physical and chemical properties of the water. We used outdoor experimental mesocosms under clear and oligotrophic (phytoplanktonic chlorophyll a = 2.04 μg l(-1); turbidity = 2.0 NTU) and organic turbid and eutrophic (phytoplanktonic chlorophyll a = 50.3 μg l(-1); turbidity = 16.0 NTU) scenarios. Samplings were conducted at the beginning of the experiment and at 1, 8, 19, and 33 days after glyphosate addition. For both typologies, the herbicide affected the abiotic water properties (with a marked increase in total phosphorus), but it did not affect the structure of micro and nanophytoplankton. In clear waters, glyphosate treatment induced a trend toward higher bacteria and picoeukaryotes abundances, while there was a 2 to 2.5-fold increase in picocyanobacteria number. In turbid waters, without picoeukaryotes at the beginning of the experiment, glyphosate decreased bacteria abundance but increased the number of picocyanobacteria, suggesting a direct favorable effect. Moreover, our results show that the impact of the herbicide was observed in microorganisms from both oligo and eutrophic conditions, indicating that the impact would be independent of the trophic status of the water body.
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Affiliation(s)
- H Pizarro
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IEGEBA-CONICET, Buenos Aires, Argentina.
| | - M S Vera
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IEGEBA-CONICET, Buenos Aires, Argentina
| | - A Vinocur
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, IEGEBA-CONICET, Buenos Aires, Argentina
- Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - G Pérez
- INIBIOMA, CRUB Comahue, CONICET, Bariloche, Argentina
| | - M Ferraro
- Instituto de Investigaciones Biotecnológicas, Instituto Tecnológico de Chascomús (IIB-INTECH), Buenos Aires, Argentina
| | - R J Menéndez Helman
- Departamento de Química Inorgánica, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M Dos Santos Afonso
- Departamento de Química Inorgánica, INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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Oyarzún C, Salinas C, Gómez D, Jaramillo K, Pérez G, Alarcón S, Podestá L, Flores C, Quezada C, San Martín R. Increased levels of adenosine and ecto 5'-nucleotidase (CD73) activity precede renal alterations in experimental diabetic rats. Biochem Biophys Res Commun 2015; 468:354-9. [PMID: 26499073 DOI: 10.1016/j.bbrc.2015.10.095] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 10/19/2015] [Indexed: 12/17/2022]
Abstract
The pathogenesis of diabetic nephropathy (DN) has not been clearly established, making diagnosis and patient management difficult. Recent studies using experimental diabetic models have implicated adenosine signaling with renal cells dysfunction. Therefore, the study of the biochemical mechanisms that regulate extracellular adenosine availability during DN is of emerging interest. Using streptozotocin-induced diabetic rats we demonstrated that urinary levels of adenosine were early increased. Further analyses showed an increased expression of the ecto 5'-nucleotidase (CD73), which hydrolyzes AMP to adenosine, at the renal proximal tubules and a higher enzymatic activity in tubule extracts. These changes precede the signs of diabetic kidney injury recognized by significant proteinuria, morphological alterations and the presence of the renal fibrosis markers alpha smooth muscle actin and fibronectin, collagen deposits and thickening of the glomerular basement membrane. In the proximal tubule cell line HK2 we identified TGF-β as a key modulator of CD73 activity. Importantly, the increased activity of CD73 could be screened in urinary sediments from diabetic rats. In conclusion, the increase of CD73 activity is a key component in the production of high levels of adenosine and emerges as a new tool for the early diagnosis of tubular injury in diabetic kidney disease.
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Affiliation(s)
- C Oyarzún
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - C Salinas
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - D Gómez
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - K Jaramillo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - G Pérez
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - S Alarcón
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - L Podestá
- CENAIA, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - C Flores
- Instituto de Medicina, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - C Quezada
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - R San Martín
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
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Sánchez A, Robaina R, Pérez G, Cairoli E. Streptococcus pneumoniae necrotizing fasciitis in systemic lupus erythematosus. Lupus 2015; 25:423-6. [PMID: 26453662 DOI: 10.1177/0961203315611498] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 09/18/2015] [Indexed: 11/17/2022]
Abstract
Necrotizing fasciitis is a rapidly progressive destructive soft tissue infection with high mortality. Streptococcus pneumoniae as etiologic agent of necrotizing fasciitis is extremely unusual. The increased susceptibility to Streptococcus pneumoniae infection in patients with systemic lupus erythematosus is probably a multifactorial phenomenon. We report a case of a patient, a 36-year-old Caucasian female with 8-year history of systemic lupus erythematosus who presented a fatal Streptococcus pneumoniae necrotizing fasciitis. The role of computed tomography and the high performance of blood cultures for isolation of the causative microorganism are emphasized. Once diagnosis is suspected, empiric antibiotic treatment must be prescribed and prompt surgical exploration is mandatory.
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Affiliation(s)
- A Sánchez
- Unidad de Enfermedades Autoinmunes Sistémicas, Clínica Médica "C", Prof. Dr. Juan Alonso Bao, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - R Robaina
- Unidad de Enfermedades Autoinmunes Sistémicas, Clínica Médica "C", Prof. Dr. Juan Alonso Bao, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - G Pérez
- Unidad de Enfermedades Autoinmunes Sistémicas, Clínica Médica "C", Prof. Dr. Juan Alonso Bao, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - E Cairoli
- Unidad de Enfermedades Autoinmunes Sistémicas, Clínica Médica "C", Prof. Dr. Juan Alonso Bao, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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Morillo D, Pérez G, Valiente M. Efficient arsenic(V) and arsenic(III) removal from acidic solutions with Novel Forager Sponge-loaded superparamagnetic iron oxide nanoparticles. J Colloid Interface Sci 2015; 453:132-141. [DOI: 10.1016/j.jcis.2015.04.048] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 04/23/2015] [Accepted: 04/24/2015] [Indexed: 11/26/2022]
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Morillo D, Uheida A, Pérez G, Muhammed M, Valiente M. Arsenate removal with 3-mercaptopropanoic acid-coated superparamagnetic iron oxide nanoparticles. J Colloid Interface Sci 2015; 438:227-234. [DOI: 10.1016/j.jcis.2014.10.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 09/22/2014] [Accepted: 10/05/2014] [Indexed: 11/27/2022]
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Berenguer J, Zamora FX, Aldámiz-Echevarría T, Von Wichmann MA, Crespo M, López-Aldeguer J, Carrero A, Montes M, Quereda C, Téllez MJ, Galindo MJ, Sanz J, Santos I, Guardiola JM, Barros C, Ortega E, Pulido F, Rubio R, Mallolas J, Tural C, Jusdado JJ, Pérez G, Díez C, Álvarez-Pellicer J, Esteban H, Bellón JM, González-García J, Miralles P, Cosín J, López J, Padilla B, Parras F, Carrero A, Aldamiz-Echevarría T, Tejerina F, Gutiérrez I, Ramírez M, Carretero S, Bellón J, Berenguer J, Alvarez-Pellicer J, Rodríguez E, Arribas J, Montes M, Bernardino I, Pascual J, Zamora F, Peña J, Arnalich F, Díaz M, González-García J, Bustinduy M, Iribarren J, Rodríguez-Arrondo F, Von-Wichmann M, Blanes M, Cuellar S, Lacruz J, Montero M, Salavert M, López-Aldeguer J, Callau P, Miró J, Gatell J, Mallolas J, Ferrer A, Galindo M, Van den Eynde E, Pérez M, Ribera E, Crespo M, Vergas J, Téllez M, Casado J, Dronda F, Moreno A, Pérez-Elías M, Sanfrutos M, Moreno S, Quereda C, Jou A, Tural C, Arranz A, Casas E, de Miguel J, Schroeder S, Sanz J, Condés E, Barros C, Sanz J, Santos I, Hernando A, Rodríguez V, Rubio R, Pulido F, Domingo P, Guardiola J, Ortiz L, Ortega E, Torres R, Cervero M, Jusdado J, Rodríguez-Zapata M, Pérez G, Gaspar G, Barquilla E, Ramírez M, Moyano B, Aznar E, Esteban H. Comparison of the Prognostic Value of Liver Biopsy and FIB-4 Index in Patients Coinfected With HIV and Hepatitis C Virus. Clin Infect Dis 2014; 60:950-8. [DOI: 10.1093/cid/ciu939] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Juan Berenguer
- Hospital General Universitario Gregorio Marañón
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)
| | - Francisco X. Zamora
- Hospital Universitario La Paz
- Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid
| | - Teresa Aldámiz-Echevarría
- Hospital General Universitario Gregorio Marañón
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)
| | | | | | | | - Ana Carrero
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)
| | - Marisa Montes
- Hospital Universitario La Paz
- Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid
| | | | | | | | - José Sanz
- Hospital Universitario Príncipe de Asturias, Alcalá de Henares
| | | | | | | | | | - Federico Pulido
- Hospital Universitario 12 de Octubre
- Instituto de Investigación Hospital 12 de Octubre
(i+12), Madrid
| | - Rafael Rubio
- Hospital Universitario 12 de Octubre
- Instituto de Investigación Hospital 12 de Octubre
(i+12), Madrid
| | | | | | | | | | - Cristina Díez
- Hospital General Universitario Gregorio Marañón
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)
| | - Julio Álvarez-Pellicer
- Hospital Universitario La Paz
- Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid
| | | | - José M. Bellón
- Hospital General Universitario Gregorio Marañón
- Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM)
| | - Juan González-García
- Hospital Universitario La Paz
- Instituto de Investigación Sanitaria La Paz (IdiPAZ), Madrid
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García H, García ME, Pérez G, Bethencourt A, Zerpa E, Pérez H, Mendoza-León A. Trypanosomiasis in Venezuelan water buffaloes: association of packed-cell volumes with seroprevalence and current trypanosome infection. Annals of Tropical Medicine & Parasitology 2013; 100:297-305. [PMID: 16762110 DOI: 10.1179/136485906x91521] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The seroprevalence of trypanosomiasis and the prevalence of current trypanosome infection in water buffaloes from the most important livestock areas of Venezuela were evaluated by IFAT and the microhaematocrit centrifugation technique, respectively. The usefulness of a PCR-based assay for identifying the trypanosome species in the buffaloes was also evaluated. Of the 644 animals investigated, 40 (6.2%) were found infected with trypanosomes by blood centrifugation, and 196 (30.4%) were found positive for anti-trypanosome antibodies, by IFAT. The results of the PCR-based assay indicated that 92.5% of the animals with current infections were infected with Trypanosoma vivax and the rest with T. theileri (the first molecular confirmation of T. theileri in Venezuelan water buffaloes). The national programme to treat and prevent trypanosome infections in the buffaloes does not appear to be meeting with great success, even though it is focused on T. vivax. Although the level of parasitaemia was categorized as low for 28 (70%) of the infections detected (and packed-cell volumes appeared to be unassociated with IFAT result, and uncorrelated, in the infected animals, with level of parasitaemia), the 40 infected buffaloes had a significantly lower mean packed-cell volume than the uninfected animals (P<0.05). Farmers should therefore be made aware of the probability of trypanosome-attributable losses in buffalo productivity.
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Affiliation(s)
- H García
- Laboratorio de Hemoparásitos, Cátedra de Parasitología, Departamento de Patología Veterinaria, Facultad de Ciencias Veterinarias, Universidad Central de Venezuela, Apartado 4563/2101A, Maracay, Venezuela.
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Pérez G, Saiz J, Ibañez R, Urtiaga AM, Ortiz I. Assessment of the formation of inorganic oxidation by-products during the electrocatalytic treatment of ammonium from landfill leachates. Water Res 2012; 46:2579-90. [PMID: 22386329 DOI: 10.1016/j.watres.2012.02.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 01/18/2012] [Accepted: 02/08/2012] [Indexed: 05/15/2023]
Abstract
This work investigates the formation of oxidation by-products during the electrochemical removal of ammonium using BDD electrodes from wastewaters containing chlorides. The influence of the initial chloride concentration has been experimentally analyzed first, working with model solutions with variable ammonium concentration and second, with municipal landfill leachates. Two different levels of chloride concentration were studied, i) low chloride concentrations ranging between 0 and 2000 mg/L and, ii) high chloride concentrations ranging between 5000 and 20,000 mg/L. Ammonium removal took place mainly via indirect oxidation leading to the formation of nitrogen gas and nitrate as the main oxidation products; at high chloride concentration the formation of nitrogen gas and the rate of ammonium removal were both favored. However, chloride was also oxidized during the electrochemical treatment leading to the formation of free chlorine responsible of the ammonium oxidation, together with undesirable products such as chloramines, chlorate and perchlorate. Chloramines appeared during the treatment but they reached a maximum and then started decreasing, being totally removed when high chloride concentrations were used. With regard to the formation of chlorate and perchlorate once again the concentration of chloride exerted a strong influence on the formation kinetics of the oxidation by-products and whereas at low chloride concentrations, chlorate appeared like an intermediate compound leading to the formation of perchlorate, at high chloride concentrations chlorate formation was delayed significantly and perchlorate was not detected during the experimental time. Thus this work contributes first to the knowledge of the potential hazards of applying the electro-oxidation technology as an environmental technology to deal with ammonium oxidation under the presence of chloride and second it reports efficient conditions that minimize or even avoid the formation of undesirable by-products.
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Affiliation(s)
- G Pérez
- Dpto. Ingeniería Química y QI. ETSIIyT, Universidad de Cantabria, Av. de los Castros s/n, 39005 Santander, Spain
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Llompart-Pou JA, Pérez-Bárcena J, Marsé P, Pérez G, Bengoechea JA, Raurich JM. [Correlation between TLR2 and TLR4 levels and adrenal gland response in trauma patients]. Med Intensiva 2012; 36:590-2. [PMID: 22436317 DOI: 10.1016/j.medin.2012.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 01/26/2012] [Accepted: 01/26/2012] [Indexed: 10/28/2022]
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Llompart-Pou JA, Pérez G, Pérez-Bárcena J, Brell M, Ibáñez J, Riesco M, Abadal JM, Homar J, Marsé P, Ibáñez J, Burguera B, Raurich JM. Correlation between brain interstitial and total serum cortisol levels in traumatic brain injury. A preliminary study. J Endocrinol Invest 2010; 33:368-72. [PMID: 20631492 DOI: 10.1007/bf03346605] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Brain cortisol availability has never been evaluated in patients with traumatic brain injury (TBI). Cerebral microdialysis is a well-established technique for monitoring brain metabolism in neurocritically ill patients, which may be used to measure interstitial cortisol. The objective of this preliminary study was to measure brain interstitial cortisol and its correlation with total serum cortisol in patients with TBI. METHODS We prospectively studied 6 patients with severe TBI admitted to the Intensive Care Unit of our tertiary University Hospital in which multimodal neuromonitoring including cerebral microdialysis with a high cut-off of 100 k-Da and 20-mm long membrane was used. Serum and brain interstitial cortisol microdialysis samples were obtained every 8 h and analyzed afterwards. RESULTS Linear regression analysis of total serum cortisol and brain interstitial cortisol in the whole population showed a moderate correlation (R2=0.538, p<0.001, no.=118). However, intra-individual correlation showed a great variability, with correlation coefficients ranging from a R2=0.091 to R2=0.680. CONCLUSION Our prospective and preliminary study showed a moderate correlation of brain interstitial cortisol and total serum cortisol values in patients with diffuse TBI. However, intra-individual analysis showed a great variability. These results suggest that total serum cortisol may not reflect brain cortisol availability in half of TBI patients.
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Affiliation(s)
- J A Llompart-Pou
- Intensive Care Medicine Service, Son Dureta University Hospital, Palma de Mallorca, Spain.
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Pérez G, Fernández-Alba AR, Urtiaga AM, Ortiz I. Electro-oxidation of reverse osmosis concentrates generated in tertiary water treatment. Water Res 2010; 44:2763-72. [PMID: 20304458 DOI: 10.1016/j.watres.2010.02.017] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 02/09/2010] [Accepted: 02/10/2010] [Indexed: 05/12/2023]
Abstract
This work investigates the application of the electro-oxidation technology provided with boron doped diamond (BDD), an electrode material which has shown outstanding properties in oxidation of organic and inorganic compounds, for the treatment of reverse osmosis (RO) concentrates generated in tertiary wastewater treatment plants (WWTP). Chemical oxygen demand (COD), ammonium and several anions were measured during the electro-oxidation process, and the influence of the applied current density (20-200A/m(2)) was analysed on process kinetics. Analytical assessment showed that several emerging pollutants (pharmaceuticals, personal care products, stimulants, etc.) were presented both in the effluent of the secondary WWTP as well as in the RO concentrate. For this reason, a group of 10 emerging pollutants, those found with higher concentrations, was selected in order to test whether electro-oxidation can be also applied for their mitigation. In the removal of emerging pollutants the electrical current density in the range 20-100A/m(2) did not show influence likely due to the mass transfer resistance developed in the process when the oxidized solutes are present in such low concentrations. Their removal rates were fitted to first order expressions, and the apparent kinetic constants for the anodic oxidation of each compound were calculated. Finally, the formation of trihalomethanes (THMs) has been checked; concluding that after selecting the appropriate operational conditions the attained concentration is lower than the standards for drinking water established in European and EPA regulations.
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Affiliation(s)
- G Pérez
- Dpto. Ingeniería Química y QI. ETSIIyT, Universidad de Cantabria, Avenida de los Castros s/n, Santander, Spain
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Pérez G, Gómez P, Ibañez R, Ortiz I, Urtiaga AM. Electrochemical disinfection of secondary wastewater treatment plant (WWTP) effluent. Water Sci Technol 2010; 62:892-897. [PMID: 20729593 DOI: 10.2166/wst.2010.328] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this work the electrochemical disinfection of the effluent of a secondary wastewater treatment plant is investigated. In the experimental work, performed on-site with real effluents of the WWTP located in Vuelta Ostrera (Cantabria, Spain), boron-doped diamond (BDD) electrodes were employed. The initial concentration of E. coli in the effluent of the WWTP varied in the range 1.3 x 10⁴-5.2 x 10⁵ cfu/mL. The influence of two operation variables on the kinetics of E. coli deactivation was investigated: i) The applied current density was varied in the range J=40-120 mA/cm², showing first order kinetics, and linear dependency of the apparent kinetic constant with the applied current density; and ii) the chloride concentration was varied in the range 60-1,050 mg/L, showing that increasing chloride content also enhanced the kinetics of the E. coli deactivation. The latter parameter is particularly important in coastal areas, as in the case of the present study. The formation of disinfection by-products (DBPs) was followed by measuring the content of trihalomethanes (THMs) that nevertheless was maintained below 100 μg/L, so it can be concluded that the formation of DBPs is not a disadvantage of electrochemical disinfection of secondary effluents of WWTP.
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Affiliation(s)
- G Pérez
- Department of Chemical Engineering, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain.
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Bordallo-Favela RA, Ramírez-Saíto A, Pacheco-Molina CA, Perera-Burgos JA, Nahmad-Molinari Y, Pérez G. Effective potentials of dissipative hard spheres in granular matter. Eur Phys J E Soft Matter 2009; 28:395-400. [PMID: 19306026 DOI: 10.1140/epje/i2008-10432-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2008] [Revised: 12/05/2008] [Accepted: 01/22/2009] [Indexed: 05/27/2023]
Abstract
We present an experimental study of the spatial correlations of a quasi-two-dimensional dissipative gas kept in a non-static steady state via vertical shaking. From high temporal resolution images we obtain the Pair Distribution Function (PDF) for granular species with different restitution coefficients. Effective potentials for the interparticle interaction are extracted using the Ornstein-Zernike equation with the Percus-Yevick closure. From both the PDFs and the corresponding effective potentials, we find a clear increase of the spatial correlation at contact with the decreasing values of the restitution coefficient.
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Affiliation(s)
- R A Bordallo-Favela
- Instituto de Física, Universidad Autónoma de San Luis Potosí, Av. Manuel Nava 6, Zona Universitaria, 78290 San Luis Potosí, San Luis Potosí, México
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Zabala S, Calpe MJ, Pérez G, Lerín FJ, Mouronval L. Neutropenia, thrombocytopenia and hepatic injury associated with dexketoprofen trometamol therapy in a previously healthy 35-year-old woman. J Clin Pharm Ther 2008; 33:79-81. [PMID: 18211621 DOI: 10.1111/j.1365-2710.2008.00881.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This case report describes a previously healthy 35-year-old woman, with an episode of fever, neutropenia, thrombocytopenia and elevation of biochemical markers of liver injury, 10 days after beginning drug therapy with dexketoprofen trometamol. Infectious and autoimmune causes of neutropenia, and viral or autoimmune hepatitis were excluded. The resolution following withdrawal of dexketoprofen trometamol confirms the possibility of an adverse drug reaction.
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Affiliation(s)
- S Zabala
- Service of Internal Medicine, Hospital Obispo Polanco, Teruel, Spain.
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Olinga P, Elferink MGL, Draaisma AL, Merema MT, Castell JV, Pérez G, Groothuis GMM. Coordinated induction of drug transporters and phase I and II metabolism in human liver slices. Eur J Pharm Sci 2008; 33:380-9. [PMID: 18328680 DOI: 10.1016/j.ejps.2008.01.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 01/18/2008] [Accepted: 01/19/2008] [Indexed: 11/26/2022]
Abstract
Although regulation of phase I drug metabolism in human liver is relatively well studied, the regulation of phase II enzymes and of drug transporters is incompletely characterized. Therefore, we used human liver slices to investigate the PXR, CAR and AhR-mediated induction of drug transporters and phase I and II metabolic enzymes. Precision-cut human liver slices were incubated for 5 or 24h with prototypical inducers: phenobarbital (PB) (50 microM) for CAR, beta-naphthoflavone (BNF) (25 microM) for AhR, and rifampicin (RIF) (10 microM) for PXR, and gene expression of the phase I enzymes CYP1A1, 1A2, 3A4, 3A5, 2B6, 2A6, the phase II enzymes UGT1A1 and 1A6, and the transporters MRP2, MDR1, BSEP, NTCP and OATP8 was measured. BNF induced CYP1A1, UGT1A1 and UGT1A6 and MRP2, NTCP and MDR1. RIF induced CYP3A4, 3A5, 2B6, 2A6, UGT1A1, UGT1A6 and BSEP, MRP2 and MDR1 and slightly downregulated OATP8. PB induced CYP3A4, 3A5, 2B6 and 2A6, UGT1A1 and all transporters. Large interindividual differences were found with respect to the level of induction. Enzyme activity of CYP3A4, measured by testosterone metabolism, was increased after 24h by RIF. 7-Ethoxycoumarin O-deethylation activity, mediated predominantly by CYP 1A1/1A2 but also by other CYPs, was increased after 24h with PB. We have shown that regulation of all phases of the (in)activation of a drug via the CAR, AhR and the PXR pathways can be studied in human liver slices. The concomitant induction of metabolic enzymes and transporters shows that also in the human liver transporters and metabolic enzymes are regulated coordinately.
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Affiliation(s)
- P Olinga
- Department of Pharmacokinetics and Drug Delivery, Groningen Research Institute for Pharmacy, University of Groningen, Ant. Deusinglaan 1, 9713 AV Groningen, The Netherlands.
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Moro MJ, Sarro M, Albéniz LF, Pérez G, Herrero E. [Broncholithiasis as ethiology of atelectasis]. An Med Interna 2007; 24:564-565. [PMID: 18751323 DOI: 10.4321/s0212-71992007001100015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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Pérez G, Castro MJ, Díaz A, Palomino MT, Morales JM, Aguado E, González F, Medina E, Rodríguez P, Robles F. Fever in epidural anesthesia. Reg Anesth Pain Med 2007. [DOI: 10.1097/00115550-200709001-00165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The fate of dinitroaniline herbicides (pendimethalin and trifluralin), organophosphous insecticides (fenitrothion and malathion), and pyrimidine (nuarimol) and triazole (myclobutanil and propiconazole) fungicides from barley to malt was determined. Several samples for residue analysis were taken after each stage of malting (steeping, germination and kilning). Pesticide residue analysis was carried out by GC/ITMS in selected ion monitoring mode. Pesticides decline along the process, although in different proportions. The carryover of residues after steeping was 45-85%. A good correlation (r > 0.92) was observed between percentages removed after steeping and the P(OW) values of pesticides. The amount remaining after malting ranged from 13 to 51% for fenitrothion and nuarimol, respectively. Steeping was the most important stage in the removal of pesticide residues (52%) followed by germination (25%), and kilning (drying and curing, 23%). During malt storage (3 months) the fall in pesticide residues was not significant. Applying the standard first-order kinetics equation (r > 0.95), the half-lives obtained for the pesticides during malt storage varied from 244 to 1533 days for myclobutanil and nuarimol, respectively.
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Affiliation(s)
- S Navarro
- Department of Agricultural Chemistry, Geology and Pedology, School of Chemistry, University of Murcia, Campus Universitario de Espinardo, E-30100 Murcia, Spain
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Torres MD, Carmona I, Campillo C, Pérez G, Campillo JE. Breakfast, plasma glucose and beta-hydroxybutyrate, body mass index and academic performance in children from Extremadura, Spain. NUTR HOSP 2007; 22:487-90. [PMID: 17650890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
OBJECTIVES Nutritional aspects of breakfast, plasma levels of glucose and beta-hydroxybutyrate, body mass index and academic performance have been studied in urban and rural children (Extremadura, Spain). METHODS Representative samples of schoolchildren (3 to 12 years old, random cluster-sampling in schools). RESULTS Children's mean caloric intake with breakfast was 331 kcal. Rural population ingested more carbohydrates (46,9 +/- 12,3% versus 43,3 +/- 13,2% of the total caloric intake) and fewer lipids (40,5 +/- 11,8% versus 43,9 +/- 12,8% of the total caloric intake) than the urban population. Academic performance was significantly better in the children inhabiting the rural zone than in those of the urban zone. The glycaemia was higher in the urban than in the rural children, and that the contrary was the case for the beta-hydroxybutyrate values. Neither glucose nor beta-hydroxybutyrate levels were correlated with academic performance values. BMI was significantly increased in the urban versus rural children. CONCLUSION The present results emphasize the importance of breakfast and life style in the weight and the academic performance of children.
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Affiliation(s)
- M D Torres
- Departamento de Fisiología, Facultad de Medicina, Universidad de Extremadura, Spain
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Kalantar-Zadeh K, Alfonzo J, Martínez A, Pérez G. Let's have the next ISN conferences in Havana and Nuremberg. Kidney Int 2007; 71:711. [PMID: 17387311 DOI: 10.1038/sj.ki.5002136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Escalona A, Devaud N, Boza C, Pérez G, Fernández J, Ibáñez L, Guzmán S. Gastrojejunal anastomotic stricture after Roux-en-Y gastric bypass: ambulatory management with the Savary-Gilliard dilator. Surg Endosc 2007; 21:765-8. [PMID: 17285381 DOI: 10.1007/s00464-006-9134-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Revised: 08/16/2006] [Accepted: 10/09/2006] [Indexed: 02/06/2023]
Abstract
BACKGROUND Roux-en-Y gastric bypass (RYGBP) is currently one of the most frequently performed procedures for the surgical treatment of morbid obesity. The success of this procedure's restrictive component requires a small gastrojejunostomy (GJ), which occasionally results in stenosis. The treatment of choice for this complication is balloon dilation. This study aimed to evaluate the feasibility and safety of ambulatory management for stenosis of the GJ using endoscopically guided Savary-Gilliard dilators. METHODS Between January 1998 and October 2003, 769 patients underwent RYGBP. The mean age of these patients was 38 +/- 12 years, and their mean body mass index (BMI) was 43 +/- 6 kg/m2. Of these 769 patients, 520 (68%) underwent open surgery and 249 (32%) underwent laparoscopic RYGBP. Patients suspected of GJ stenosis were referred for upper gastrointestinal endoscopy. Those who presented with stenosis were managed endoscopically with Savary-Gilliard dilators. RESULTS Stenosis at the GJ was confirmed in 53 patients (6.9%). A total of 71 dilations were performed for these patients, resulting in a mean of 1.3 dilations per patient. One dilation was needed for 41 patients (75.5%), two dilations for 9 patients (16.9%), three dilations for 3 patients (5.7%), and four dilations 1 patient (1.9%). The patients subjected to open RYGBP required a mean of 1.57 dilations, and those who had laparoscopic RYGBP required mean of 1.08 dilations. The mean time for the first dilation was 51 +/- 28 days after surgery (range, 20-178 days). All the dilations were performed in ambulatory settings. One patient (1.9%) was admitted after GJ dilation for pain. He was discharged without symptoms after 2 days with no need for invasive procedures. CONCLUSIONS The management and treatment of GJ stenosis after RYGBP can be effectively accomplished in ambulatory settings using endoscopically guided Savary-Gilliard dilators, with good and safe results.
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Affiliation(s)
- A Escalona
- Departamento de Cirugía Digestiva, Pontificia Universidad Católica de Chile, Marcoleta 367, Santiago, Chile.
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Rus Palacios M, Risquete García R, Hidalgo Figueroa C, Pérez G, Navarro M. Neumonía eosinófila crónica: a propósito de una observación. An Pediatr (Barc) 2007. [DOI: 10.1016/s1695-4033(07)70369-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Cabrera Pérez J, Bravo Fernández I, Pérez G, González Enguita C. PD-03.08. Urology 2006. [DOI: 10.1016/j.urology.2006.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Barceló A, Barbé F, de la Peña M, Vila M, Pérez G, Piérola J, Durán J, Agustí AGN. Antioxidant status in patients with sleep apnoea and impact of continuous positive airway pressure treatment. Eur Respir J 2006; 27:756-60. [PMID: 16585082 DOI: 10.1183/09031936.06.00067605] [Citation(s) in RCA: 141] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The episodes of hypoxia/re-oxygenation associated with the respiratory disturbances observed in patients with obstructive sleep apnoea syndrome (OSAS) may induce the generation of oxygen free radicals. Indeed, several studies suggest that OSAS is associated with oxidative stress. The present study tested the hypothesis that patients with OSAS have an alteration in antioxidant defences. The plasma levels of total antioxidant status (TAS), glutathione peroxidase (GPX), gamma-glutamyltransferase (GGT), vitamins A, E, B12 and folate, and homocysteine were determined in 47 patients with OSAS and 37 healthy subjects. Of these, 27 patients who used continuous positive airway pressure (CPAP) for >4 h.night-1 were re-examined 12 months later. Patients with OSAS had lower TAS (1.4+/-0.16 versus 1.50+/-0.10 mmol.L-1), vitamin A (64+/-19 versus 74+/-17 microg.dL-1) and vitamin E levels (1,525+/-499 versus 1,774+/-503 microg.dL-1), and increased values of GGT (42+/-22 versus 32+/-16 U.L-1) than controls. There was no difference between groups in GPX, homocysteine, vitamin B12 and folate plasma levels. CPAP treatment normalised the levels of TAS (1.50+/-0.13 mmol.L-1) and the activity of GGT (30+/-14 U.L-1) without any influence on vitamins levels. In conclusion, the results indicate that patients with obstructive sleep apnoea syndrome have a decreased antioxidant capacity that is partially reversed by continuous positive airway pressure treatment.
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Affiliation(s)
- A Barceló
- Serveis de Anàlisis Cliniques, and Pneumologia, Hospital Universitario Arnau de Vilanova, Lleida, Spain.
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Barceló B, Barceló A, Riesco M, Pérez G, Castanyer B, Vila M. Variabilidad de las concentraciones séricas de CA 125 en mujeres sanas en función de la edad, situación hormonal y otras condiciones. Clínica e Investigación en Ginecología y Obstetricia 2006. [DOI: 10.1016/s0210-573x(06)74100-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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García JR, Simó M, Soler M, Pérez G, López S, Lomeña F. Relative roles of bone scintigraphy and positron emission tomography in assessing the treatment response of bone metastases. Eur J Nucl Med Mol Imaging 2005; 32:1243-4. [PMID: 16133396 DOI: 10.1007/s00259-005-1843-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pérez G, Valiente M. Determination of pollution trends in an abandoned mining site by application of a multivariate statistical analysis to heavy metals fractionation using SM&T-SES. ACTA ACUST UNITED AC 2004; 7:29-36. [PMID: 15614399 DOI: 10.1039/b411316k] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mobility, availability and persistence of Heavy Metals (HMs), As, Cd, Cu, Ni, Pb and Zn, in contaminated soils of a former abandoned mining area were evaluated by means of a sequential extraction scheme (SES) and applying a multivariate statistical analysis to the obtained data. Chemical partitioning of HMs in each sample was determined in four fractions (acid-soluble, reducible, oxidable and residual) following the Standard Measurements and Testing (SM&T) SES, formerly BCR-SES. Statistical evaluation of results by pattern recognition techniques allowed identification of groups of samples with similar characteristics and observations of correlations between variables, determining the pollution trends and distribution of HMs within the studied area. Typical metal-fraction association and metal availability characteristics of heavy metals have been depicted. The obtained results indicate an urgent need to attenuate the hazard in that area posed by high concentrations of toxic metals, which exceed the limits specified by different European legislations on soil reclamation.
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Affiliation(s)
- G Pérez
- Centre GTS, Unitat de Quimica Analitica, Departament de Quimica, Universitat Autonoma de Barcelona, Facultat de Ciencies, Edifici CN, 08193 Bellaterra, Barcelona, Spain
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García JR, Simó M, Pérez G, Soler M, López S, Setoain X, Castell J, Lomeña F. [Diagnosis and assessment of therapeutic response of bone metastases by bone scintigraphy and PET study]. ACTA ACUST UNITED AC 2004; 23:197-201. [PMID: 15153364 DOI: 10.1016/s0212-6982(04)72282-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Nuclear medicine plays an important role in staging and evaluation of the initial extension and response to treatment of bone metastases. In order to accurately read Bone Scintigraphy (BS) and Positron Emission Tomography scan (PET) procedures, it is essential to understand the different behavior of these studies. We present a case report of a woman treated for breast cancer, with suspicion of recurrent disease due to increase of tumor markers. Initial BS showed non-conclusive findings, whereas PET study was consistent with a spread of bone metastases. The patient underwent both procedures again after a course of chemotherapy. Post-treatment BS showed progression of bone lesions, while PET showed good therapeutic response. The PET demonstrates lesions earlier and more effectively than the bone scintigraphy in the evaluation of the therapeutic response of bone metastases.
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Affiliation(s)
- J R García
- CETIR Unitat PET, Esplugues de Llobregat, Barcelona, Spain
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Aja S, Pérez G, Rosell C. Wheat damage by Aelia spp. and Erygaster spp.: effects on gluten and water-soluble compounds released by gluten hydrolysis. J Cereal Sci 2004. [DOI: 10.1016/j.jcs.2003.10.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Requena L, Kutzner H, Palmedo G, Calonje E, Requena C, Pérez G, Pastor MA, Sangueza OP. Cutaneous involvement in multiple myeloma: a clinicopathologic, immunohistochemical, and cytogenetic study of 8 cases. Arch Dermatol 2003; 139:475-86. [PMID: 12707095 DOI: 10.1001/archderm.139.4.475] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Specific cutaneous involvement in patients with multiple myeloma (MM) is very uncommon. It usually occurs in late stages of MM as a reflection of increased tumor cell burden. We studied 8 patients with cutaneous involvement of MM without underlying bony lesions and reviewed the literature on this rare dermatologic manifestation. DESIGN We were particularly interested in the clinical course of patients with MM and cutaneous metastases, including survival once metastases were detected and the possible influence of various forms of therapy. Our goal was also to identify the immunoglobulin and the light-chain type in these cases, with emphasis on any possible association between a particular immunoglobulin class and cutaneous involvement, as well as the histopathologic, immunohistochemical, and cytogenetic features of the neoplastic plasma cells involving the skin. SETTING University department of dermatology, university hospital, and private practice. PATIENTS Medical records and biopsy specimens from 8 patients with MM and specific cutaneous lesions were reviewed. RESULTS Cutaneous lesions consisted of multiple erythematous or violaceous nodules or plaques with a wide anatomical distribution. Histopathologically, 2 different patterns were identified: nodular and diffuse interstitial. Neoplastic plasma cells showed atypical features, and in 1 case they displayed a spindle shape, giving a sarcomatoid appearance to the lesion. Immunohistochemical studies demonstrated that neoplastic plasma cells were strongly positive for CD79a, CD138, and epithelial membrane antigen, and variably positive for VS38c and CD43. In each case the immunoglobulin profile and the light-chain type expression of the neoplastic cells were the same as those identified in the serum of the patients: 5 cases were IgA lambda; 2 cases were IgG kappa; and 1 case was IgA kappa. In cases 2, 3, and 4, polymerase chain reaction investigations revealed monoclonal rearrangement for IgH genes, whereas the investigations for human herpesvirus 8 and Epstein-Barr virus yielded negative results. Fluorescent in situ hybridization investigations in these 3 cases demonstrated that the cutaneous neoplastic plasma cells showed the deletion of the rb-1 (retinoblastoma) gene. Despite aggressive chemotherapy, all 8 patients died a few months after the development of cutaneous involvement. CONCLUSIONS In our series, there was a perfect correlation of immunoglobulin and light-chain type between the serum electrophoresis and the cutaneous plasma cells. Patients with MM showed a short survival once cutaneous metastases appeared independently of the therapy. The deletion the rb-1 gene may provide prognostically relevant information to identify a high-risk subset of patients with MM.
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Affiliation(s)
- Luis Requena
- Department of Dermatology, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain.
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Barrero CA, Vandenberghe RE, De Grave E, Morales AL, Pérez G. The Experimental Nuclear Quadrupole Interaction in Synthetic Al-Goethites of Varying Crystallinity. ACTA ACUST UNITED AC 2003. [DOI: 10.1023/b:hype.0000003796.91461.8a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Marrugat J, Porta M, Fernández E, Pérez G, Elosua R, Plasència A, Manzanera R, Lown B. [Open letter to the president of the Spanish government on health professionals and the consequences of a possible war in Iraq]. Gac Sanit 2003; 17:86-7. [PMID: 12605751 DOI: 10.1016/s0213-9111(03)71699-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ruiz M, Cirera Suárez L, Pérez G, Borrell C, Audica C, Moreno C, Torcida I, Martos D. [Comparability between the ninth and tenth revisions of the International Classification of Diseases applied to coding causes of death in Spain]. Gac Sanit 2002; 16:526-32. [PMID: 12459136 DOI: 10.1016/s0213-9111(02)71975-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To analyze comparability between the ninth and tenth revisions of the International Classification of Diseases (ICD) applied to coding causes of death in Spain. METHODS According to the ninth and tenth revisions of the ICD, 80,084 statistical bulletins of mortality registered in 1999 were assigned the Basic Cause of Death. The statistical bulletins corresponded to the Autonomous Communities of Andalusia, Cantabria, Murcia, Navarre and the Basque Country, and the city of Barcelona. The underlying causes of death were classified into 17 groups. Simple correspondence, the Kappa index and the comparability ratio for major causes were calculated. RESULTS A total of 3.6% of deaths changed group due to an increase (36.4%) in infectious and parasitic diseases, mainly because of the inclusion of AIDS, and a corresponding decrease due to the exclusion of endocrine, nutritional and metabolic disorders. Furthermore, myelodysplastic syndrome was moved to the category of neoplasm. The group including nervous system diseases, eye and related diseases, and ear and mastoid apophysis diseases increased (14.7%) at the expense of mental and behavior disorders, due to the inclusion of senile and presenile organic psychosis. Poorly-defined entities increased (14.1%) due to the inclusion of cardiac arrest and its synonyms, together with heart failure, to the detriment of diseases of the vascular system. Diseases of the respiratory system increased (4.8%) due to the inclusion of respiratory failure, previously considered as a poorly defined cause. The correspondence for all causes was 96.4% and kappa's index was 94.9% CONCLUSIONS The introduction of ICD-10 affects the comparability of statistical series of mortality according to cause. The results of this study allow us to identify the main modifications and to quantify the changes in the major causes of mortality in Spain.
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Affiliation(s)
- M Ruiz
- Servicio de Informacion y Evaluacion. Consejeria de Salud de la Junta de Andalucia. Sevilla. Spain.
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Simó M, Lomeña F, Setoain J, Pérez G, Castellucci P, Costansa JM, Setoain-Quinquer J, Doménech-Torné F, Carrió I. FDG-PET improves the management of patients with suspected recurrence of colorectal cancer. Nucl Med Commun 2002; 23:975-82. [PMID: 12352596 DOI: 10.1097/00006231-200210000-00007] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This study aims to assess the influence of 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) detection of recurrent disease on the management of patients with colorectal cancer and suspected recurrence. One hundred and twenty patients with suspected recurrence were studied with FDG-PET. Fifty-eight patients were referred for FDG-PET because of the elevation of serum tumour markers. Thirty-one patients were referred because of inconclusive results of conventional imaging modalities. Twenty-five patients had known recurrence and were referred for pre-surgical assessment. Six patients were referred because of abdominal pain. A major management change was considered when, as a consequence of FDG-PET results, medical treatment was changed to surgical, or surgical to medical or to no treatment. A minor management change was considered when changes were made within a treatment modality. Of the 58 patients with elevated serum carcinoembryonic antigen (CEA), FDG-PET detected recurrence and led to a major management change in 34 (58%). Eighteen underwent curative surgery and 16 were treated with systemic therapy. Of the 31 patients evaluated because of inconclusive results of conventional imaging modalities, FDG-PET was positive for recurrence in 24 and negative in seven. A major management change took place in 14 patients (45%). Of the 25 patients evaluated to rule out other sites of disease before surgery, FDG-PET did not show any other site of recurrence in 13 (52%) and showed more lesions in the remaining patients. Major management change took place in eight patients (32%). Overall, in the 120 patients studied, FDG-PET resulted in major management changes in 58 (48%), minor changes in four (3%) and no change in 54 (45%). It can be concluded that FDG-PET has a significant impact on the management of patients with suspected recurrence of colorectal cancer. FDG-PET detection of recurrence frequently allows curative surgical intervention. The early identification of distant metastases may also facilitate the implementation of systemic treatment.
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Affiliation(s)
- M Simó
- CETIR PET Center, Barcelona, Spain.
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Campillo JE, Pérez G, Rodriguez A, Torres MD. Vitamins and mineral intake in elderly people from Extremadura. J Nutr Health Aging 2002; 6:55-6. [PMID: 11813083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
To evaluate the vitamin and mineral consumption of a group of elderly people of the Comunidad of Extremadura. 122 subjects 62.5+/-5.3 years (64 women, 57 men) responded to a survey on their food intake the day before. The vitamin and mineral intake was calculated using a computer program from the University of Granada. We found no statistically significant differences by gender in the intake of the following vitamins: niacin (24.5+/-10.1 vs 25.6+/-9.7 mg/day), B1 (1.6+/-0.6 vs 1.7+/-0.6 mg/day), B6 (1.7+/-0.6 vs 1.8+/-0.5 mg/day), C (129.5+/-82.1 vs 158.1+/-97.6 mg/day), D (4.4+/-7.5 vs 3.8+/-6.5 microg/day), E (7.8+/-4.1 vs 8.1+/-3.8v mg/day), and folic acid (326.6+/-164.0 vs 383.1+/-215.3 microg/day). We did find statistically significant differences in the intake of the vitamins: A (582.2+/-299.6 vs 771.8+/-602.2 microg/day, p<0.05), B12 (23.4+/-20.3 vs 13.1+/-12.1 microg/day, p<0.001) and B2 (1.6+/-0.4 vs 1.8+/-0.5 mg/day, p<0.05). With respect to mineral intake, we found no statistically significant differences by gender in the intake of the following minerals: calcium (1046.8+/-276.9 vs 1088.9+/-307.7 mg/day), iron (20.2+/-6.6 vs 18.5+/-8.6 mg/day), iodine (73.6+/-37.9 vs 73.8+/-41.1 mg/day), potassium (2804.6+/-1088 vs 2837.5+/-1035.8 mg/day), magnesium (405.4+/-155.3 vs 366.5+/-141.3 mg/day), phosphorus (1407.4+/-408.6 vs 1317.2+/-447.2 mg/day) and zinc (8.9+/-3.3 vs 8.0+/-2.7 mg/day). We found a statistically significant difference (p<0.05) for sodium (2124.9+/-1049.5 mg/day in men and 1728.4+/-992.5 mg/day in women). Our results showed an intake less than the RDA of vit.A, while the vit.B12 intake was greater than the RDA. The intake of the other parameters fitted the recommended values.
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Affiliation(s)
- J E Campillo
- Department of Physiology, Faculty of Medicine, University of Extremadura, Badajoz, Spain
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Pérez G, Cardell E, Zárate V. Random amplified polymorphic DNA analysis for differentiation of Leuconostoc mesenteroides subspecies isolated from Tenerife cheese. Lett Appl Microbiol 2002; 34:82-5. [PMID: 11849499 DOI: 10.1046/j.1472-765x.2002.01050.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS In the present study, a RAPD-PCR fingerprinting method was developed to assign Tenerife cheese Leuconostoc mesenteroides strains to its three subspecies (mesenteroides, cremoris and dextranicum). METHODS AND RESULTS Arbitrarily primed-PCR gave different DNA banding patterns for each type strain of Leuc. mesenteroides subspecies consisting in three major and intense bands of: 1800, 1600 and 1150 bp for subspecies mesenteroides 1800, 1150 and approximately 350 bp for subspecies cremoris; and 1800, 1600 and 1500 bp for subspecies dextranicum. DNA fingerprints of Tenerife cheese Leuc. mesenteroides subspecies were coincident to that of their respective type strain. RAPD profiles were reproducible with DNA template obtained by two different extraction methods. CONCLUSIONS Tenerife cheese Leuc. mesenteroides strains were rapidly and unequivocally assigned to one of the subspecies by comparing their RAPD-PCR fingerprints with those displayed by type strains used as standards. This technique can be applied to complement preliminary identification of Leuc. mesenteroides to the species level by other molecular methods such as protein fingerprinting. SIGNIFICANCE AND IMPACT OF THE STUDY RAPD-PCR allows reliable, reproducible and rapid molecular differentiation of Tenerife cheese Leuc. mesenteroides subspecies with no need to use time-consuming and often ambiguous biochemical tests.
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Affiliation(s)
- G Pérez
- Departamento de Microbiología y Biología Celular, Universidad de La Laguna, La Laguna 38206, Tenerife, Spain
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